-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, CZ459TzrW+CCnxzziPHxaDIVUhzT6NIdPb8eR48QGz2cK9Kne85PU+iCmZho/2kH oaCDX1R61d3Vgkqpy7seag== 0000950123-02-001659.txt : 20020425 0000950123-02-001659.hdr.sgml : 20020425 ACCESSION NUMBER: 0000950123-02-001659 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20020212 DATE AS OF CHANGE: 20020320 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: IRON MOUNTAIN INC/PA CENTRAL INDEX KEY: 0001020569 STANDARD INDUSTRIAL CLASSIFICATION: PUBLIC WAREHOUSING & STORAGE [4220] IRS NUMBER: 232588479 STATE OF INCORPORATION: PA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-52359 FILM NUMBER: 02551571 BUSINESS ADDRESS: STREET 1: 745 ATLANTIC AVENUE CITY: BOSTON STATE: MA ZIP: 02111 BUSINESS PHONE: 6175354766 MAIL ADDRESS: STREET 1: 745 ATLANTIC AVENUE CITY: BOSTON STATE: MA ZIP: 02111 FORMER COMPANY: FORMER CONFORMED NAME: PIERCE LEAHY CORP DATE OF NAME CHANGE: 19960807 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: CHIEFTAIN CAPITAL MANAGEMENT INC CENTRAL INDEX KEY: 0000789920 STANDARD INDUSTRIAL CLASSIFICATION: UNKNOWN SIC - 0000 [0000] IRS NUMBER: 133194313 STATE OF INCORPORATION: NY FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 12 EAST 49TH ST CITY: NEW YORK STATE: NY ZIP: 10017 BUSINESS PHONE: 2124219760 MAIL ADDRESS: STREET 1: 12 EAST 49TH STREET CITY: NEW YORK STATE: NY ZIP: 10017 SC 13G/A 1 y57479esc13ga.txt AMENDMENT NO. 1 TO SCHEDULE 13G OMB APPROVAL OMB Number: 3235-0145 Expires: October 31, 2002 Estimated average burden hours per response . . .14.9 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. 1 )* Iron Mountain, Inc. - - -------------------------------------------------------------------------------- (Name of Issuer) Common Stock - - -------------------------------------------------------------------------------- (Title of Class of Securities) 462846 10 6 - - -------------------------------------------------------------------------------- (CUSIP Number) - - -------------------------------------------------------------------------------- (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [X] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d) *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). Page 1 of 5 CUSIP No. 462846 10 6 ------------------------- - - ------------------------------------------------------------------------------------------------ 1. Names of Reporting Persons. I.R.S. Nos. of above persons (entities only). Chieftain Capital Management, Inc. 13-3194313 - - ------------------------------------------------------------------------------------------------ - - ------------------------------------------------------------------------------------------------ 2. Check the Appropriate Box if a Member of a Group (See Instructions) a. Not Applicable b. Not Applicable - - ------------------------------------------------------------------------------------------------ 3. SEC Use Only - - ------------------------------------------------------------------------------------------------ 4. Citizenship or Place of Organization New York -------------------------------------------- - - ------------------------------------------------------------------------------------------------ Number of 5. Sole Voting Power -0- Shares Bene- ---------------------------------------------------- ficially Owned By Each 6. Shared Voting Power 7,444,740 Reporting -------------------------------------------------- Person With: 7. Sole Dispositive Power -0- ----------------------------------------------- 8. Shared Dispositive Power 7,444,740 --------------------------------------------- - - ------------------------------------------------------------------------------------------------ 9. Aggregate Amount Beneficially Owned by Each Reporting Person 7,444,740 ------------------------- - - ------------------------------------------------------------------------------------------------ 10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) Not Applicable ---------------------------- - - ------------------------------------------------------------------------------------------------ 11. Percent of Class Represented by Amount in Row (9) 13.3% ----------------------------------- - - ------------------------------------------------------------------------------------------------ 12. Type of Reporting Persons (See Instructions) IA, CO - - ------------------------------------------------------------------------------------------------ - - ------------------------------------------------------------------------------------------------ - - ------------------------------------------------------------------------------------------------
Page 2 of 5 ITEM 1. (a) Name of Issuer: Iron Mountain, Inc. (b) Address of Issuer's Principal Executive Offices: 745 Atlantic Avenue Boston, Massachusetts 02111 ITEM 2. (a) Name of Person Filing: Chieftain Capital Management, Inc. (b) Address of Principal Business Office or, if none, Residence: 12 East 49th Street New York, New York 10017 (c) Citizenship: New York (d) Title of Class of Securities: Common Stock (e) CUSIP Number: 462846 10 6 ITEM 3. (a) [ ] Broker or dealer registered under Section 15 of the Act (15 U.S.C. 78o). (b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c). (c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c). (d) [ ] Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8). (e) [X] An investment advisor in accordance with section 240.13d- 1(b)(1)(ii)(E); (f) [ ] An employee benefit plan or endowment fund in accordance with section 240.13d- 1(b)(1)(ii)(F); (g) [ ] A parent holding company or control person in accordance with section 240.13d-1(b)(ii)(G);
Page 3 of 5 (h) [ ] A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813); (i) [ ] A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3); (j) [ ] Group, in accordance with section 240.13d-1(b)(1)(ii)(J). ITEM 4. Ownership (a) Amount beneficially owned: 7,444,740 (b) Percent of class: 13.3% (c) Number of shares as to which the person has: (i) Sole power to vote or to direct the vote: -0- (ii) Shared power to vote or to direct the vote: 7,444,740 (iii) Sole power to dispose or to direct the disposition of: -0- (iv) Shared power to dispose or to direct the disposition of: 7,444,740 ITEM 5. Ownership of Five Percent or Less of a Class If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more that five percent of the class of securities, check the following [ ]. ITEM 6. Ownership of More than Five Percent on Behalf of Another Person Chieftain Capital Management, Inc. ("Chieftain") has investment discretion with respect to the securities to which this statement relates. Chieftain's clients and principals are the direct owners of such securities, and Chieftain does not have any economic interest in such securities. Such clients and principals have the sole right to receive dividends from, and the proceeds from the sale of, such securities. No such client or principal has an interest that relates to more than 5% of the class.
Page 4 of 5 ITEM 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company Not Applicable ITEM 8. Identification and Classification of Members of the Group Not Applicable ITEM 9. Notice of Dissolution of Group Not Applicable ITEM 10. Certification By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purposes or effect. SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. February 11 , 2002 ------------------------------------------ Date /s/ Thomas D. Stern ------------------------------------------ Signature Thomas D. Stern/ManagingDirector ------------------------------------------ Name/Title Page 5 of 5 -----END PRIVACY-ENHANCED MESSAGE-----